A crystal or crystalline solid is a solid material whose constituents, such as atoms, molecules or ions, are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macroscopic single crystals are usually identifiable by their geometrical shape, consisting of flat faces with specific, characteristic orientations.
CRYSTAL CATEGORIES
CRYSTAL
Location: Minas Gerais, Brazil
This is a fantastic Purple Fluorite and Dog Tooth Calcite Stalactite specimen.
Location: Democratic Republic of the Congo
Very nice Celestite with good blue color. It has smaller crystals about 1-2 cm in length.
The Erongo seems to have some of the nicest Schorls around.
This is a common crystal from an uncommon location.
Cute thumbnail with a bi-color aquamarine included with schorl tourmaline and attached to feldspar.
Creedite was not a specimen that was readily available until this mine produced some of the best, if not the best, creedite in existence.
